United States Park Police

For Emergencies, please call the U.S. Park Police dispatch at 202-610-7500

The dedicated force of the United States Park Police patrol the Baltimore-Washington Parkway.
There are no commercial vehicles allowed on the parkway.
Please see the Code of Federal Regulations 36 CFR

Please remember to obey all posted speed limits.
Note that the speed limit changes from 55 mph to 45 mph from the Route 450 Annapolis Road exit to the Washington, D.C. boundary.


The United States Park Police is a unique organization within the National Park Service.

It is the oldest NPS component, predating its adoptive parent by half a century (or more, some would argue).
Its personnel wear distinctive uniforms, perform specialized functions, and are regularly assigned to a small minority of national parklands.

Click here to learn more about the United States Park Police.

United States Park police car


The United States Park Police

Last updated: November 3, 2022

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Contact Info

Mailing Address:

6565 Greenbelt Road
Greenbelt, MD 20770


Emergency Phone number for U.S. Park Police

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